4-Picoline (4-Methylpyridine) from Canada
4-Picoline features a methyl substituent at the 4-position of the pyridine ring, widely used in agrochemical and pharmaceutical production. It qualifies for HTS 2933.39.10.00 as a picoline under the heterocyclic nitrogen compounds with unfused pyridine ring provision. Often stabilized with anticaking agents per Chapter 29 note (f).
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit NMR spectra confirming structure; 4-picoline often contaminated with 2/3-isomers
• DOT requires 4H1 steel drums; include Material Safety Data Sheet (MSDS) showing LD50 >500 mg/kg
• Avoid classification disputes by declaring CAS 108-89-4 explicitly on commercial invoice